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<head><meta charset="utf-8"><title>unused patch rustc-std-workspace-core · general · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/index.html">general</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/unused.20patch.20rustc-std-workspace-core.html">unused patch rustc-std-workspace-core</a></h3>

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<a name="154889078"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/unused%20patch%20rustc-std-workspace-core/near/154889078" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Jake Goulding <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/unused.20patch.20rustc-std-workspace-core.html#154889078">(Jan 11 2019 at 02:35)</a>:</h4>
<div class="codehilite"><pre><span></span>warning: Patch `rustc-std-workspace-core v1.0.0 (/root/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/tools/rustc-std-workspace-core)` was not used in the crate graph.
Check that the patched package version and available features are compatible
with the dependency requirements. If the patch has a different version from
what is locked in the Cargo.lock file, run `cargo update` to use the new
version. This may also occur with an optional dependency that is not enabled
</pre></div>


<p><span class="user-mention" data-user-id="120791">@RalfJ</span> Does this mean anything to you? is it bad?</p>



<a name="154902166"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/unused%20patch%20rustc-std-workspace-core/near/154902166" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> oli <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/unused.20patch.20rustc-std-workspace-core.html#154902166">(Jan 11 2019 at 08:32)</a>:</h4>
<p><span class="user-mention" data-user-id="116155">@Jake Goulding</span> I fixed this, but I'm not sure if the fix is in nightly already</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/unused%20patch%20rustc-std-workspace-core/near/154903643" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> RalfJ <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/unused.20patch.20rustc-std-workspace-core.html#154903643">(Jan 11 2019 at 09:07)</a>:</h4>
<p><span class="user-mention" data-user-id="116155">@Jake Goulding</span> yeah I have seen i and I think it is harmless</p>



<a name="154903656"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/unused%20patch%20rustc-std-workspace-core/near/154903656" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> RalfJ <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/unused.20patch.20rustc-std-workspace-core.html#154903656">(Jan 11 2019 at 09:07)</a>:</h4>
<p>we use xargo to build libstd and libtest; libstd needs a <code>[patch]</code> section and then the libtest build complains that that section is unused</p>



<a name="154903668"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/unused%20patch%20rustc-std-workspace-core/near/154903668" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> RalfJ <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/unused.20patch.20rustc-std-workspace-core.html#154903668">(Jan 11 2019 at 09:07)</a>:</h4>
<p><span class="user-mention" data-user-id="124288">@Oli</span> how did you fix it?</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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